Peter Rock is also the father of Justin Leigh who resides in Los Angeles. He is also involved in the entertainment business, and started out as an actor then had 2 major record deals as a solo artist lead singer. Peter also has a teenage daughter named Natalie that lives with him in Santiago Chile.

Peter Rock is Alain Johannes uncle, and while he was living on the US, he introduce several dudes into music, like the whole Red Hot Chili Peppers' crew, Chris Cornell, among others.